SOME PROPERTIES OF PAUCIDISPERSE GYMNOSPERM LIGNIN SULFONATES OF DIFFERENT MOLECULAR-WEIGHTS

被引：25

作者：

BUCHHOLZ, RF ^{[1
]}

NEAL, JA ^{[1
]}

MCCARTHY, JL ^{[1
]}

机构：

[1] UNIV WASHINGTON,DEPT CHEM ENGN,SEATTLE,WA 98195

来源：

JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY | 1992年 / 12卷 / 04期

关键词：

D O I：

10.1080/02773819208545791

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Five purified paucidisperse gymnosperm lignin sulfonate samples (M(w) @ 2,400 to 140,000), prepared by fractionation using ultrafiltration and dialysis, have been characterized in part. The relationship was established between the molecular weights Of the fractions and those of the dissolved lignin sulfonates representing nearly all of the total lignin originally present in the woody tissue. The chemical composition, ultraviolet and infrared absorption spectra, intrinsic viscosity, diffusion coefficient, specific volume, hydraulic radius and streaming current properties of the several samples have been determined or estimated as a function of molecular weight.

引用

页码：447 / 469

页数：23

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